> Using NewsIsFree's API

For using NewsIsFree's API you need to be a registered user and have a personal application key. For getting your personal application key, please, contact us. For using clipPost and unclipPost functions you need to have a Premium Account.

All the API functions may return API response structure with corresponding response code and response message. This structure is always returned on errors. Some of the functions return this structure with successfull code (it is mentioned in function description).

mergeSources(application_key, login, password, page, opmlDocument) Merges a source list with the user's current source list. Duplicate sources will not be duplicated; however, duplicates are determined solely by URI equivalence of the xmlurl attributes of individual elements and will not determine that, for example, two different URIs resolve to the same content.

This site uses the PHP implementation of SOAP server with WSDL definitions.
So for getting access to NIF API you need to create a SOAP client. Below there are examples of SOAP client, using php5 standard SOAP library, PEAR SOAP and nusoap libraries: